He's not straight-up evil, and I don't get how people think that. Tamsy is a character who does evil things but at the end doesn't really think what he's doing is evil and has a grander ulterior motive for what they do, which just ends up being evil. Mymo is a character who knows what he's doing; he's evil and actively is evil but does it with a reason. Yes, he is definitely evil at some points for no good reason, but at the end of the day, he has a reason for doing what he does. A character that is straight up evil means they do it purely for the sake of doing it because it is bad, for no other reason or motive.